Mechanics

This has to be one of the most fun science activities I've done with my kids in a long time. It is super simple, inexpensive, and quick. It took us a few tries experimenting with how to add the baking soda to the bottle, but I think we got it down. We were able to make this super easy bottle rocket ...

My kids love when we make little homemade "robots" that move and wiggle around. I've been wanting to make something more car or rover-like with wheels for awhile, but I wasn't exactly sure how to connect the motor to the wheels. This little propeller car kind of feels like cheating, since the ...

I'm so honored to have my third guest post on 123Homeschool4Me. While this activity does not ACTUALLY defy the laws of gravity, this "anti-gravity" Ping-Pong ball experiment is SUPER easy and impressive. Even my husband and I were surprised by the result at first and we have PhDs in engineering. ...